Cause
If you had set the personal folders (. Pst) and offline folder (. Ost) file size limit in less than 2 GB

The problem of email sending error will occurs, but you will not receive an error message stating that the reason。

Solution
To resolve this problem, obtain the latest version of Microsoft Office XP Service Pack. Additional details, please see the following Microsoft Knowledge Base article
(http://support.microsoft.com/kb/307841/en-us)

0x8004210b

Some error messages are not in this table

It will not affect the correctness of this table, end users will encounter the error codes are included in this table
(1) Restart Outlook is fine

0x80042109
0x8004210b

SMTP Error:
About 0x80042109, 0x8004210b error code：

Mostly wrong SMTP setting such as using irrelevant smtp

Or SMTP authentication does not required but has set (vice versa)

Antivirus software for e-mail scanning interference caused by an error

About the SMTP server address settings, please refer to your Email service provider

0x800CCC00

Authentication is not loaded

0x800CCC01

Certification (Certificate) content errors

0x800CCC02

Certification (Certificate) Date Error

0x800CCC03

The user is connected

0x800CCC05

Not connected to the server

0x800CCC0A

Email download unfinished

0x800CCC0B

Server Busy

0x800CCC0D

Host not found (check your SMTP server setting it can also be server problem)

For example, Mail Server is not boot or down

You can change SMTP to 465

0x800CCC0E

Connection to the server failed, could not establish a connection with the host

Possible the host is down for maintenance, or network connection quality is not good, shut down the server,
mail server has not been started, etc.

Try again later

If your antivirus software have similar "Email Protection" functions

Recommend that you turn off "E-mail protection" then try again

From experience that, sometimes because antivirus software "Email Protection" interference,
will produce the situation can not send and receive mail.

You can change SMTP to 465

0x800CCC0F

Timeout- Check internet connection ?

End server connection

Server overload, network traffic congestion

You can try to increase your connection timed out waiting time or look for a better connection quality of ISP

0x80042108

If you see the error is 0x80042108, it is almost effect by anti virus software,
because all the anti virus software will have a email scanning function for
pop3, so you should disable it and try again.
If it still can not receive, you can try to below pop3 setting
pop3: mail6.abchk.com (port 1100)
but we suggest you should disable the email scanning function first.

1.Recipient address error and can not send a letter
2.Sender address is incorrect, you can not send a letter
3.Sender e-mail address setting is incomplete and can not send a letter. Outgoing server in wrong setting.

[Solution]
(1) Please set the outgoing server to smtp.abchk.com
(2) Or set the outgoing server to your network (ISP) provider

0x800CCC7A

The sender address is not specified

0x800CCC7B

The recipient address is not specified

POP3 Error

0x800CCC90

Mail server login error, check whether you are authorize or not to use this server's privileges. Or: No secure password authentication login, but set a secure password authentication login

0x800CCC91

Incorrect user name or can not be found

0x800CCC92

Incorrect user name or password

0x800CCC93

Unknown response

0x800CCC94

Instruction need

0x800CCC95

E-mail is no longer on the server

0x800CCC96

No messages marked for download

0x800CCC97

Message ID out of range

NNTP Error

0x800CCCA0

News server response error, you may not have permission to use the server

Expecting an important e-mail which have been sent, but I had never received ?

[Possible Cause]
(1) wrong e-mail address
(2) E-mail goes to either junk or spam folder
(3) Email was download onto other PC
[Solution]
(1)Please confirm your e-mail address with sender
(2)Please check "Mailbox Information" to see if exceeds the maximum capacity limit
(3)Please look for other mail folders
(4)Check "Mail Filtering" to see if the system misidentified as spam
(5)If you have received e-mail on other computers , letters may be left on another computer
(6)Please Provide the detail of sender, recipient address and Sent Time E-mail inquiries to support@abchk.com